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Tech / General EngineIs your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Noticed this hole today when I was under my car...I prodded it with a screw driver and it seems to go all the way into the engine block. What is this hole for? Do I just need to plug it? There is another one to the left of it that is the same size, but it doesn't go through.
I think the hole with nothing in it was used to mount a pivot ball for a old style Z bar for a mechanical clutch. The one with the plug is oil pressur and needs to be plugged.
You mean the boss for a mechanical clutch linkage stud? Search Google for info on Z-bar clutch linkages and you should be able to find a photo of the stud.
Edit: Beat me to it... Replying to threads during commercials without refreshing the tab strikes again.
The Z-bar was not the best way to mount clutch linkage but it worked well for basically stock, low powered vehicles at the time. One end attached to a ball on the block. The other end attached to a frame rail. Get a little too much torque twisting or a bad motor mount and the clutch linkage could bind or break.
Lots of old holes still cast into the blocks that many people don't know what they're for. There are 4 threaded holes on the front of the block also. Two on either side of the balancer. These holes were for the original front motor mount.
Noticed this hole today when I was under my car...I prodded it with a screw driver and it seems to go all the way into the engine block. What is this hole for? Do I just need to plug it? There is another one to the left of it that is the same size, but it doesn't go through.
the hole<br/>
Do you know the thread pitch of those holes that are above the oil filter in the block?
03-28-2017, 08:15 PM
